He thinks his son's wife has fallen asleep... The father-in-law can't control his desires and goes for a 69 cunnilingus! The wife is awake and can't bring herself to admit it, but she is shocked by the cock rubbing against her face from a distance! "No, I'm coming... I can't hold back either!" She loses her composure and takes the immoral cock in her mouth! She is so absorbed in a 69 position! Finally, they can't just 'lick each other' and engage in forbidden adulterous sex!